Sewing-machine attachment.



B. J. BOYLER.

SEWING MACHINE ATTAGHMENT. APPLICATION FILED FEB. 10, 1913.

1,085,104. Patented Jan 27, 1914.

llhllTE EMANUEL J. BOYLER, OF NEW HAVEN, CONNECTICUT, ASSIGNOR TO THEGREIST MANUFACTURING COMPANY, A CGRPORATION OF CONNECTICUT.

SEWING-MACHINE ATTACHMENT.

To (ZZZ whom it may concern Be it known that I, EMANUEL J. Boynnn, acitizen of Canada, residing at New Haven, in the county of New Haven andState of Connecticut, have invented or discovered certain new and usefulImprovements in Sewing-Machine Attachments, of which the following is aspecification, reference being had therein to the accompanying drawings.

This invention relates to sewing machine attachments, and moreparticularly to sewing machine hennners, and has for its object toprovide means whereby hemmers or other similar attachments, such as abinder, a braider or corder, or an edge guide, may be mounted on thepresser foot in such a manner as to be conveniently removed, whendesired, as also in such a manner that it may be adjusted laterally onthe presser foot with reference to the position of the needle ordirection of movement of the work. To this end the hemmer or otherattachment is provided with a shank having a vertical flange or upturnedportion constructed with a double key-hole slot, and in the lower partof the shank of the presser-foot are mounted two headed studs adapted topass through the larger portions of this key-hole slot, the narrowerportions of said slot closely fitting the shanks of the said studsbeneath the said heads, when the attachment is mounted on the presserfoot. The studs referred to pass loosely through the shank of thepresser-foot but with a close fit, and are connected to a spring whichis attached to the rear side of the presser-foot by said studs, saidspring acting to hold one or both of said studs frictionally against theupturned flange of the attachment so that the attachment will befrictionally retained in place in such a manner that it may be adjustedlaterally simply by sliding it slightly one way or the other, and may bereadily removed, when desired, by moving the shank to a position whichwill cause the larger portions of the double keyhole slot to registerwith the heads of said studs.

In the accompanying drawing Figure 1 is a perspective view of theinvention in the form of a hemmer attachment. Figs. 2, 3 and at areplan, side and rear views, respectively, of the same, and Fig. 5 is asection on line 55, Fig. 3.

Referring to the drawing, 12 denotes a resser-foot provided with a shankportion Specification of Letters Patent.

Application filed February 10, 1913.

Patented Jan. 27, 1914.

Serial No. 747,388.

13 by which said foot may be detachably secured to a sewing machinepresser-bar in a well-known manner. Mounted on the said presser-foot, inthe form of the invention herein illustrated, is a scroll hemmer 1 1 ofwell-known construction, said hemmer 14 being provided with a shank 15having an upturned portion or vertical flange 16 constructed with adouble key-hole slot 17. Mounted in the lower part of the shank of thepresser-foot are two studs 18 and 19 the heads of which are adapted topass through the enlarged portions of the double key-hole slot, so thatwhen said enlarged portions are brought into register with said studsthe atta chment may be applied to the presser-foot, and may then beremoved laterally to bring the heads of the said studs into registerwith the narrower portions of the key-hole slot, so that the attachmentwill be secured in place on the presser-foot.

The studs 18 and 19 are riveted to a spring 20 mounted at the rear sideof the presser foot and held in place by said studs, said spring servingto draw the head of the stud 18 into frictional engagement with theflange 16 of the hemmer shank 15 and thus frictionally hold the hemmerattachment in place, but permitting it to he slid laterally on saidstuds for the purpose of adjustment, or for the purpose of bringing theenlarged portions of the key-hole slot into register with said studswhen the attachment is to be removed. The head of the stud 19 fitsclosely against the front side of the flange 1G and said head ispreferably provided with a slot or nick 21 and a portion of the shank ofthe presser-foo-t adjacent said stud is preferably PlOVlClQCl with anotch 22. The said stud 19 passes through a washer 23 which is heldagainst the spring 20 by the riveted portion of the said stud, thelatter being thus so mounted that it may be turned, if desired.

If it he desired to adjust the hemmer or other attachment laterally onthe presserfoot in a more convenient or exact manner than can be done bysliding the same laterally by hand, a screw-driver or similar pointedinstrument may be inserted into the slot or nick in the stud 19, withone edge of the screw driver in the said notch 22 in the shank portionof the attachment, so that by turning the screw driver slightly aneccentric adjustment will be afi'orded by which the attachment may beslid or adjusted laterally in an exact or delicate manner, suchadjustment being for the purpose of locating the line of stitching atany desired distance from the edge of the hem; and the said attachmentwill be maintained in any position to which it may be adjusted by reasonof the frictional hold of the heads of the studs 18 and 19 on the flangeportion 16 of the presser-foot shank.

It will be understood that the construction above described affords aconvenient means whereby a hemmer may be readily mounted on a presserfoot in such a manner as to be conveniently and quickly removed if it bedesired to replace the same by a hemmer of a different width; and itwill also be understood that the hemmer shown in the drawing may bereplaced by another attachment of any suitable kind such as a binder, abraider or corder, etc.

The construction above described provides convenient means whereby ahemmer or other attachment may be readily and quickly applied to orremoved from its supporting presser-foot or may be adjusted laterallythereon, without requiring the tightening or loosening of a set-screw orsimilar device the attachment being retained in any desired position ofadjustment on the presser-foot by means of the frictional hold of theheads of the studs against the upturned flange on the shank portion ofthe attachment.

Havino thus described my invention I claim and desire to secure byLetters Patent: 1. The combination with a sewing ma chine presser-foothaving a shank portion provided with two headed studs one of which isloosely mounted for endwise movement in said shank portion, of anattachment, such as a hemmer or the like, having a shank provided withan upturned portion or flange constructed with a double key-hole slotreceiving the said studs, the heads of said studs being adapted tofrictionally engage the said upturned portion or flange :9 for thepurpose of adjustably and removably securing the attachment to the saidpresser foot, and a spring acting on said loosely mounted stud andserving to hold the head thereof in frictional contact with the shank ofthe attachment.

2. The combination with a sewing machine presser-foot having a shankportion provided with two headed-studs, of an attachment, such as ahemmer or the like, having a shank provided with an upturned portion orflange constructed with a double keyhole slot receiving the said studs,the heads of said studs being adapted to frictionally engage the saidupturned portion or flange for the purpose of adjustably and removablysecuring the attachment to the said presser foot, and a spring attachedto the shank portion of said presser-foot and to which spring the saidstuds are attached by means of riveted or upset portions of said studs.

3. The combination with a sewing machine presser-foot having a shankportion provided with two headed-studs, of an attachment, such as ahemmer or the like, having a shank provided with an upturned portion orflange constructed with a double key-hole slot receiving the said studs,the heads of said studs being adapted to frictionally engage the saidupturned portion or flange for the purpose of adjustably and removablysecuring the attachment to the said presser foot, one of said studsbeing provided with a slit or nick and said shank being provided with anotch adjacent to the said stud, to enable the attachment to be adjustedlaterally by means of a screwdriver or the like.

In testimony whereof I afliX my signature, in presence of two witnesses.

EMANUEL J. BOYLER.

WV. 0. GRErsT.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, D. G.

